A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5895-01-146-3907
NSN 6145-01-024-8557
NSN 5925-01-281-7511
NSN 5935-01-412-0240
NSN 5965-01-043-2014
NSN 5945-00-422-3448
NSN 2925-01-538-1343
NSN 6105-00-399-4704
NSN 5915-01-320-8683
NSN 6145-00-918-0809
NSN 6645-01-076-3494
NSN 5990-00-495-2859